180 lines
5 KiB
C
180 lines
5 KiB
C
/*
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* (C) Copyright 2008 Semihalf
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*
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* (C) Copyright 2000-2004
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* DENX Software Engineering
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* Wolfgang Denk, wd@denx.de
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*
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* Updated-by: Prafulla Wadaskar <prafulla@marvell.com>
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* FIT image specific code abstracted from mkimage.c
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* some functions added to address abstraction
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*
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of
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* the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
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* MA 02111-1307 USA
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*/
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#include "mkimage.h"
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#include <image.h>
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#include <u-boot/crc.h>
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static image_header_t header;
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static int fit_verify_header (unsigned char *ptr, int image_size,
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struct mkimage_params *params)
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{
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return fdt_check_header ((void *)ptr);
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}
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static int fit_check_image_types (uint8_t type)
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{
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if (type == IH_TYPE_FLATDT)
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return EXIT_SUCCESS;
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else
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return EXIT_FAILURE;
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}
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/**
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* fit_handle_file - main FIT file processing function
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*
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* fit_handle_file() runs dtc to convert .its to .itb, includes
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* binary data, updates timestamp property and calculates hashes.
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*
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* datafile - .its file
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* imagefile - .itb file
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*
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* returns:
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* only on success, otherwise calls exit (EXIT_FAILURE);
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*/
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static int fit_handle_file (struct mkimage_params *params)
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{
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char tmpfile[MKIMAGE_MAX_TMPFILE_LEN];
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char cmd[MKIMAGE_MAX_DTC_CMDLINE_LEN];
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int tfd;
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struct stat sbuf;
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unsigned char *ptr;
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/* Flattened Image Tree (FIT) format handling */
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debug ("FIT format handling\n");
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/* call dtc to include binary properties into the tmp file */
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if (strlen (params->imagefile) +
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strlen (MKIMAGE_TMPFILE_SUFFIX) + 1 > sizeof (tmpfile)) {
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fprintf (stderr, "%s: Image file name (%s) too long, "
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"can't create tmpfile",
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params->imagefile, params->cmdname);
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return (EXIT_FAILURE);
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}
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sprintf (tmpfile, "%s%s", params->imagefile, MKIMAGE_TMPFILE_SUFFIX);
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/* dtc -I dts -O -p 200 datafile > tmpfile */
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sprintf (cmd, "%s %s %s > %s",
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MKIMAGE_DTC, params->dtc, params->datafile, tmpfile);
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debug ("Trying to execute \"%s\"\n", cmd);
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if (system (cmd) == -1) {
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fprintf (stderr, "%s: system(%s) failed: %s\n",
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params->cmdname, cmd, strerror(errno));
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unlink (tmpfile);
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return (EXIT_FAILURE);
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}
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/* load FIT blob into memory */
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tfd = open (tmpfile, O_RDWR|O_BINARY);
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if (tfd < 0) {
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fprintf (stderr, "%s: Can't open %s: %s\n",
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params->cmdname, tmpfile, strerror(errno));
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unlink (tmpfile);
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return (EXIT_FAILURE);
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}
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if (fstat (tfd, &sbuf) < 0) {
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fprintf (stderr, "%s: Can't stat %s: %s\n",
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params->cmdname, tmpfile, strerror(errno));
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unlink (tmpfile);
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return (EXIT_FAILURE);
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}
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ptr = mmap (0, sbuf.st_size, PROT_READ|PROT_WRITE, MAP_SHARED,
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tfd, 0);
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if (ptr == MAP_FAILED) {
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fprintf (stderr, "%s: Can't read %s: %s\n",
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params->cmdname, tmpfile, strerror(errno));
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unlink (tmpfile);
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return (EXIT_FAILURE);
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}
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/* check if ptr has a valid blob */
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if (fdt_check_header (ptr)) {
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fprintf (stderr, "%s: Invalid FIT blob\n", params->cmdname);
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unlink (tmpfile);
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return (EXIT_FAILURE);
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}
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/* set hashes for images in the blob */
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if (fit_set_hashes (ptr)) {
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fprintf (stderr, "%s Can't add hashes to FIT blob",
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params->cmdname);
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unlink (tmpfile);
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return (EXIT_FAILURE);
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}
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/* add a timestamp at offset 0 i.e., root */
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if (fit_set_timestamp (ptr, 0, sbuf.st_mtime)) {
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fprintf (stderr, "%s: Can't add image timestamp\n",
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params->cmdname);
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unlink (tmpfile);
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return (EXIT_FAILURE);
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}
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debug ("Added timestamp successfully\n");
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munmap ((void *)ptr, sbuf.st_size);
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close (tfd);
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if (rename (tmpfile, params->imagefile) == -1) {
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fprintf (stderr, "%s: Can't rename %s to %s: %s\n",
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params->cmdname, tmpfile, params->imagefile,
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strerror (errno));
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unlink (tmpfile);
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unlink (params->imagefile);
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return (EXIT_FAILURE);
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}
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return (EXIT_SUCCESS);
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}
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static int fit_check_params (struct mkimage_params *params)
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{
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return ((params->dflag && (params->fflag || params->lflag)) ||
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(params->fflag && (params->dflag || params->lflag)) ||
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(params->lflag && (params->dflag || params->fflag)));
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}
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static struct image_type_params fitimage_params = {
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.name = "FIT Image support",
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.header_size = sizeof(image_header_t),
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.hdr = (void*)&header,
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.verify_header = fit_verify_header,
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.print_header = fit_print_contents,
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.check_image_type = fit_check_image_types,
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.fflag_handle = fit_handle_file,
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.set_header = NULL, /* FIT images use DTB header */
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.check_params = fit_check_params,
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};
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void init_fit_image_type (void)
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{
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mkimage_register (&fitimage_params);
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}
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